
/*中间页面布局*/
.middle-layout{
  width: 900px;
  height:900px;
  margin-left: 50px;
  position: relative;
  top: -25px;
}
.middle>div:nth-child(3){
  width: 900px;
  height: 350px;
  margin-top: 20px;
  background-image: url("../img/us_3n6b.jpg");
}
.middle>div:nth-child(3)>div:nth-child(1){
  color: rgb(10,204,206);
  font-size: 80px;
  text-align: center;
  line-height: 250px;
  border: 1px solid red;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background-color: white;
  opacity: 0.3;
}
.text-retract-two{
  text-indent: 2em;
  margin: 5px 0px 5px 0px;
}
/*.AboutUS-text>div:nth-child(2)>ul{*/
/*  text-indent: -10px;*/
/*}*/
